摘要
通过对湖南省范围内四川桤木成林、中林、幼林调查,总结出四川桤木在湖南的生长情况及适应性:(1)种源丰产性由大到小排序为邛崃、夹江、珙县、冰川、都江、金堂、盐亭、雅安;(2)四川桤木喜爱高水肥,而不耐干旱瘠薄,易受风吹、雪压之害;(3)前期生长快,后期生长明显减慢且个体分化大,建议轮伐期不超过12年。
Based on the investigation of the forest, middle forest and young forest of Alnus cremastogyne in Hunan province, the growth situation and adaptability of Alnus cremastogyne were summarized. （ 1 ） The order of decreasing productivity provenance were in counties of Qionglai ,Jiajiang, Gongxian , Bingchuan, Dujiang,Jintang, Yanting and Ya＇ an; （2） Alnus cremastogyne favorite high water and fertilizer,and un-favorite in dry and barren,wind and snow pressure harm; （3） The growth rapid in early period, growth slowed down in the latter part and the individual difference were also recommended. The rotation period should not exceeding 12 years.
出处
《湖南林业科技》
2006年第6期20-22,30,共4页
Hunan Forestry Science & Technology
关键词
四川桤木
引种
生长状况
适应性
Alnus cremastogyne
introduction
growth situation
adaptability
